Traffic engineering for VoIP network based on PSTN statistical models

Author

Stojanovic, Zvezdan ; Babic, Djordje

Author_Institution

Telekom Srpske, Bosnia-Herzegovina

fYear

2009

fDate

7-9 Oct. 2009

Firstpage

564

Lastpage

567

Abstract

This paper shows an analysis how to calculate proper bandwidth for VoIP calls after proper dimensioning PSTN network. For this purpose, we use Erlang B and extended Erlang B formulas. Further, we have developed a software tool to calculate proper numbers of the circuits on the PSTN side (using our bandwidth calculator) and after that, bandwidth on the IP. By another word, traffic analysis will be conducted to VoIP networks considering impact of many factors on the bandwidth: voice codec, samples, VAD, RTP compression. The regression analysis is used to show trends of the subscriber behavior in the future (for specific category of subscribers). Finally, simulation results are compared with data obtained by bandwidth calculator.

Keywords

Internet telephony; codecs; regression analysis; telecommunication traffic; PSTN statistical models; RTP compression; VoIP calls; VoIP network; bandwidth calculator; extended Erlang B formulas; public switch telephone network; regression analysis; software tool; traffic engineering; voice codec; Bandwidth; Circuits; Codecs; ISDN; Internet telephony; Modems; Software tools; Speech analysis; Telecommunication traffic; Traffic control; Bandwidth; Traffic Engineering; VoIP;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009. TELSIKS '09. 9th International Conference on

Conference_Location

Nis

Print_ISBN

978-1-4244-4382-6

Electronic_ISBN

978-1-4244-4383-3

Type

conf

DOI

10.1109/TELSKS.2009.5339445

Filename

5339445